tailieunhanh - Introducing 3ds Max 9 3D for beginners apr 2007 - part 5

Tạo nhanh mô hình hóa học vô cơ với Pro Booleans. Đặt các hoạt cảnh trên các layer (lớp) riêng rẽ để dễ dàng quản lý và làm việc với hoạt cảnh phức tạp | the editable poly tools 203 The current sub-object level or the top level of an editable poly can quickly be accessed from the tools 1 quadrant of the Quad menu or by using the number keys along the top row of the keyboard as shortcut keys not the keys in the numeric keypad . The shortcuts are 1 Vertex 2 Edge 3 Border 4 Polygon 5 Element and 6 Top Level. 11. Exit the Polygon sub-object level and use the Cut tool to add a horizontal edge dividing the rear polygon. Right-click to discontinue creating edges and then click the Cut button to turn it off. 12. Switch to the Vertex sub-object level. In the Front viewport use a selection region to select each group of vertices at the rear of the turret and move them into place. 13. Switch to the Left viewport and then select the vertex at the leading point of the turret. 204 chapter 5 Modeling in 3ds Max Part II 14. In the Edit Vertices rollout click the Chamfer button. 15. Click and drag in the Left viewport to chamfer the selected vertex and create an additional polygon. 16. Use the Move tool to relocate the new vertices appropriately. 17. Exit the Vertex sub-object level. Creating the Access Hatch The tank s crew needs to enter the tank from an access hatch on the top surface. This is also where the vehicle commander will sit to examine the battlefield. To create this feature the editable poly tools 205 the ShapeMerge compound object is used to project the edges of a two-dimensional shape onto a three-dimensional surface creating new edges and polygons on the 3D surface. 1. In the Top viewport drag out a donut shape. Set the Radius 1 value to 10 and the radius 2 value to 15. 2. Move the donut in the Z-axis above the turret so that the shape s edges will be projected onto the top of the turret. 3. Select the tank turret object and then select Create Geometry Compound Objects ShapeMerge. 4. In the Pick Operand rollout click the Pick Shape button and select the donut in the viewport. 5. New edges appear on the top surface .